initial link suggestion work

[jacobryas4]

here is the initial work for the link suggestion feature. a high level overview of whats included:

• dapp_scraper.py: this file scrapes for IPFS links, then fetches the data from each link via a public IPFS gateway. it then saves the data as JSON in a JSON file.
• dapps.py: here we create the schema for the weaviate DB
• config.py: added the new dapps_index here
• index_widget.py: modified this file to use the new dapps_index - QUESTION: do we still use the scraped_sites_index? if so, i will need to add it back in here in some way

This is initial work but it does seem to be working. some outlying issues to be addressed:

• dapps doesn't seem to have that much data. Right now, it pulls data for about a dozen dapps. This is enough to prove the concept but probably need more robust data moving forward
• the frontend only intermittently recognizes/displays the URL as an actual link and when it does, the link opens in the same tab instead of a new one.
• i need to do some more testing to figure out how good it is. I did some specific testing ("what is {x} protocol?") and then moved to more vague questions ("what is a service i can use to do {pretty specific items in the description of the data}?"). I'm sure there is room for some fine tuning